Heat exchange device



Feb.2,1937. SPERRY L 2,069,728

` HEAT EXCHANGE DEVICE n Filed June l, 1956 3 Sheets-Sheet l Feb. 2, 1937. P. F. sFr-:RRY

HEAT EXCHANGE DEVICE Filed June 1, 195e 5 sheets-sheet 2 Feb. 2, 1937. P. F. SPERRY 2,069,728

` HEAT EXCHANGE DEVICE Filed June 1, 1936 3 Sheets-Sheet 3 L. fyi' of? i9 j@ Patented Feb. 2, 1937 UNITED STATS ATE f HEAT EXCHANGE DEVICE Application June 1, 1936, Serial No. 82,886

s claims. (c1. 257-137) The invention relates to heat exchange devices and is particularly adapte-d to be embodied in automobile heaters.

One form of the invention is embodied in an automobile heater adapted to be mounted on a dash board of an automobile and comprising a radiator core which is connected to the cooling system of the automobile and is enclosed within a housing having means mounted thereon for controlling the direction in which heated air is advanced from the core Yby a fan which is operatively connected to the electrical system of the automobile. The means for controlling the direction in which air is advanced from the core comprises a plurality of manually adjustable baflles or shutters mounted in the front wall of the housing, a plurality of manually adjustable bales mounted Within the housing directly in back of the rst-mentioned adjustable 2o shutters or bales and a fixed baille mounted in the lower part of the housing for directing the heated air through a plurality of slots or apertures provided in the bottom wall of the housing, the construction being such that the baffles mounted within the housing in back of the bailles mounted on the front wall may be adjusted to direct the air advanced by the fan to the fixed baffle so that the heated air will be discharged from the housing through the slots or apertures in the lower wall of the housing instead of through the front wall of the housing. The movable or adjustable baflles may be adjusted at will by the operator to control the direction in which the heated air flows into the interior of the automobile.

Other objects and advantages will become apparent as the following detailed description progresses, reference being had to the accompanying drawings, wherein- Fig. 1 is a front view of an automobile heater which embodies the invention.

Fig. 2 is a side elevation of the improved heater.

Fig. 3 is an enlarged section taken on line 3--3 of Fig. 1.

Fig. 4 is an enlarged section taken on the same line as Fig. 3 but Showing the adjustable bales in changed positions.

Fig. 5 is a section taken on line 5-5 of Fig. 3,

and Fig. 6 is a fragmentary section taken on line 6-6 of Fig. 5.

housing I0 preferably comprises a front wall I2,

a top wall I3, side walls I4 and a bottom wall I5, the bottom Wall I5 preferably comprising a central portion I6 which is connected by inclined portions Il to the side walls I4. The front 5' wall I2 is provided with a relatively large aperture 20 in which a ring or annulus 22 is rotatably mounted, the ring or annulus 22 being provided with an outwardly directed flange 23 at its periphery, which ilange is rotatably jour- 10 nailed between the front wall I2 and a plurality of bars or clips 26 secured to the front wall I2 by screws 21. The ange 23 co-operates with the front wall I2 and the bars or clips 26 to prevent forward or rearward displacement of l5 the ring or annulus 22 with respect to the front wall I2. The ring or annulus 22 comprises an inwardly directed annular ange 28 to the inner surface of which are secured a plurality of brackets 30 for pivotally mounting a plurality 20 of adjustable shutters or bailles 32, 33, 34 and 35, the bailles or shutters 32, 33, 34 and 35 be ing provided with ears 36 which are pivoted to the brackets 30 by pins 38 (Figs. 3, 4 and 6). As best shownl in Figs. 1, 3, 4 and 6, the shut- 25 ters are shaped so that they may be adjusted to close the aperture in the annulus or ring 22. Each of the adjustable shutters 32, 33, 34 and 35 is provided with a handle member-4I) which may be grasped by the operator when the shut- 30 ters or bailes 32, 33, 34 and 35 are adjusted into positions desired by the driver. The pivotal connections of the ears 36 to the brackets 30 preferably provide sufficient friction so that the shutters or baffles 32 to 35, inclusive, will remain in 35 their adjusted positions. A handle member '42 fixed to the flange 28 of the ,ring or annulus 22 may be employedby the driver to displace the ring or annulus 22 with its shutters 32 to 35, inclusive, angularly to direct the heated air as 40 desired bythe driver. In Fig. 4, the shutters or baffles 32 to 35, inclusive, direct the heated air downwardly toward the feet of the driver. In Fig. 3 the shutters or bafles 32 to 35, inclusive, are in their closed positions so that the heated 45 air can not be advanced through the aperture 20 in the front wall I2 of the heater.

As best shown in Figs. 5 and 6, a plurality of brackets 45 Vare welded or otherwise secured to the inner surfaces of the side walls I4. Secured 50 to the brackets 45 by screws 46 are vertically disposed angle irons 41 to which are pivoted by pins 48, ears 43 projecting from adjustable baffles 50. The adjustable baiiles 50 are substantially identical in size and shape with the exception of the lower-most baille 59 which has two of its lower corners cut away as indicated at 53 (Fig. 5). Each of the baillesr 50 is kprovided with a central recess 54 in its lower or forward edge. At

the center of the recess 54, the baffles are provided with forwardly projecting integral lugs 55 which project into slots 56 formed in a vertically disposedbar 58 which has its lower end pivoted pin 63 is disposed eccentrically with respect to.

the pin 65 so that if the knob 66 is rotated, the lever 69 will be raised or lowered dependent upon the direction in which the knob 66 is rotated.

As best shown in Fig. 5, the plate 64 is provided with shoulders 69 and 19 extending radially with respect to the longitudinal axis of the pin 65. When the lever 69 is in the position wherein it is shown in Figl. 5, the shoulder 69 abuts against the pin 12 projecting inwardly from the front wall I2. When the shoulder 69 abuts against the pin 12, the bailies 59 are in the positions wherein they are shown in Fig. 3. However, if the knob 66 is displaced angularly in a counter-clockwise direction (Fig. 5) to bring the shoulder 10 into vcontact with the pin 12 the lever v69 will move upwardly to displace the bar 58 upwardly and the bar 58 will bring the bailles 59 into the position wherein theyA are shown in Fig. 4 so that they oier substantially no resistance to air being advanced through the core by a fan 13 disposed directly behindthe core. It is readily understood that the baiiles 59 may be disposed in positions intermediate the positions wherein they are'shown in Figs. 3 and 4 and it is readily under- 4 stood that the shuttersor baiiles 32 to 35, inclu-.

sive, may be adjusted into positions wherein they are shown in Figs. 3 and 4. It is also readily understood that the shutters or bailles 32 to 35, inclusive, may be adjusted independently with each other with respect to the annulus or ring 22.

The inclined portions I1 of the bottom wall |5 are provided with large apertures 15 in vwhich sheet metal `plates 16 are fixed, the plates 16 being provided with apertures 18 of any suitable shape. An angle-shaped sheet metal baille 99 is disposed within the housing I9 in the lower portion thereof. One leg of the baille 99 abuts against the lower end of theplate 16 associated with one of the walls |1 and the other leg of the baille 89 abuts against the lower end of the plate 16 associated with the other wall I1. The baille 89 is apertured as at 92 so that the lever 69 may project therethrough. It will be readily understood that when heated air is advanced through the core against the bailles 59 when they are y in the positions illustrated in Fig. 3, the heated air will be deilected downwardly toward the baille 99 and will be divided by the baille 99 into two streams which will flow through the apertures 19 of the plates 16.

The core I| comprises a tank as shown atY the left hand side of Fig. 5. vAt the right hand side of Fig. 5 it will be noted that the core is provided with an upper tank 96 and a lower tank 81. 'I'he tanks 96 and 81 communicate with the tank 95 through a plurality of tubes 99 which are 'provided with sheet metal fins 99.

'I'he housing I3 is provided with a rear wall 93 having a central aperture 94 and a rearwardly extending annular flange 95 extending around the fan 13 (Figs. 3 and 4). The fan 13 is mounted on the shaft 91 of an electric motor 99 (Fig, 2) which is connected operatively to the electrical system of the automobile in which the heater is mounted. The motor 99 is secured to a bracket 99 which carries the housing I9. Projecting through the bracket 99 and secured thereto is a cylindrical member |99 which is screw-threaded to receive nuts |92 and |93. The construction is such that the cylindrical member |99 may be disposed in an aperture in the dashboard of the automobile in which the heater is mounted and the dashboard (not shown) may be clamped be,

tween the bracket 99 land the nuts |92 and |93. Obviously. the heater will then be secured rigidly to the dashboard. A pair of tubes |94 and |95 projecting from the rear end of the cylindrical member |99 are connected to the cooling system of the automobile by suitable means (not shown). The tubes |94 and |95 communicate with passages in the cylindrical member |99 and these passages communicate with the tanks' 96 and 91 through tubes |94a and I95a (Fig. 4). When the heater is in operation, the liquid from the cooling system flows through the tubes |94 and |94a into the tank 96, then through the upper tubes 99 to the tank 95. then through the lower tubes 99 to the tank 91 and then returns tothe cooling system through the tubes |95a and |95.

It will be readily understood that whenvthe shutters 32 to 35, inclusive,v and the baflies 59 are adjusted in the positions wherein they are shown in Fig. 4, the heated air will be advanced mainly through the aperture in the ring or annulus 22 to impinge upon the bailles 32 to 35. inl advanced by the shutters 32 to 35, inclusive, can

be controlled as desired by the driver.

If the bailles 59 are in the positions wherein they are shown in Fig. 3 and the shutters 32 to 35, inclusive, are in the positions wherein they are shown in Fig. 4, a large proportion of the heated air advanced through the core will be deflected downwardly to be discharged frouvthe housing I9 through the apertures 19 to the bottom of the compartment in which the driver sits.

If the shutters 32 to 35, inclusive, are then closed,`

l. A heat exchange device comprising a housing having top, bottom, side and front walls, said front wall having a large aperture therein/and said bottom wall having inclined apertured tions through which air may nass down and laterally with respect to said heat exchange device, a radiator core disposed in said housing, means for advancing air through said radiator core into said housing, a plurality of adjustable shutters for closing the aperture in said front wall, a plurality of adjustable bafes mounted in v saidhousing for directing said air downwardly through the apertures in the inclined portions of the bottom wall, and means for adjusting said adjustable baffles simultaneously.

2. A heat exchange device comprising a housing having top, bottom, side and front walls, said front wall having a large aperture therein and said bottom wall having apertures therein through lwhich air may pass downwardly with respect to said heat exchange device, a ring rotatably journalledinthe aperture in said front wall, a plurality of shutters adjustably mounted on said ring for closing the aperture therethrough, a radiator core disposed. in said housing,l means for advanacing air through4 said radiator-core into said housing, a plurality-of adjustable baffles mounted in said housing `for directing said air downwardly through the apertures in the bottom wall, and means for adjusting said bailles simultaneously.

3. A heat exchange device comprising al housing having top, bottom, side and front Walls, said front Wall having a large aperture therein and said bottom wall having inclined apertured portions through which air may pass downwardly and laterally with respect to said heat exchange device, a radiator core disposed in said housing, means for advancingv air through said radiator core into said housing, a plurality of adjustable shutters for either closing the aperture for said front wall or for varying the direction of discharge of air passing therethrough, means for adjusting said shutters as a unit, means for ad- 40 justingv said shutters independently, a plurality of adjustable bailies mounted in said housing for varying the ow of air through the front wall aperture or downwardly through the inclined apertures in the bottom wall, and means adjusting said baies simultaneously.

4. A heat exchange device comprising a housing having top, bottom, side and front walls, said front wall having a large aperture therein and said bottom wall having inclined apertured portions through which air may pass downwardly and laterally with respect to said heat exchange device, a radiator core disposed in said housing, means for advancing air through said radiator core into said housing, control means for the large front aperture, a iixed baffle for dividing the downwardly directed air between the inclined apertures in the bottom wall, and a plurality of adjustable baliies mounted in the housing inwardly yof said front aperture for effecting directional control over all of the air leaving the core to direct the same either through the apertures in the bottom Wall or through the front 4wall aperture.

Y 5. A heat exchange device comprising a housing having top, bottom, side and front walls, said front and bottom walls having apertures therein through which air may pass horizontally or downwardly with respect to said heat exchange device, a radiator core disposed in said housing, means for advancing air through said radiator core into said housing, means in the front wall aperture operable to prevent the passage of air therethrough or to direct all of, or any part of, the air leaving the core either horizontally or at an angle to the horizontal, and means in the housing constructed and arranged to eiiect directional control over all of the air leaving the core to proportion its delivery between the apertures in the front and bottom walls.

PHILMORE F. SPERRY. 

